GPM Science Check-Out

The Global Precipitation Measurement mission Core Observatory is performing normally. The GPM Microwave Imager (GMI) continues in science mode, and GMI data is being sent to the Precipitation Processing System (PPS) at NASA's Goddard Space Flight Center in Greenbelt, Md. Using the initial data, the instrument team has verified that GMI is working well on-orbit.  

GPM Science Briefing

GPM Science Briefing
Image Caption: 
GPM Science Briefing

From left: Riko Oki, GPM Project Scientist, JAXA, Yukari Takayabu, Professor, Atmosphere and Ocean Research Institute, Gail Skofronick-Jackson, NASA GPM Project Scientist, and, Ramesh Kakar, GPM Program Earth Scientist , NASA Headquarters, are seen during a science briefing for the launch of the Global Precipitation Measurement (GPM) Core Observatory aboard an H-IIA rocket, Wednesday, Feb. 26, 2014, Tanegashima Space Center, Japan. Launch is scheduled for early in the morning of Feb. 28 Japan time.

GCPEx: Scientific Motivation and Goals

Falling snow is critically important for society in terms of freshwater resources, atmospheric water and energy cycles, and ecosystems. However, there are few archives of falling snow around the world that can be used to improve measurements from satellites. GCPEx will make detailed in situ observations of cloud and frozen precipitation microphysics to improve these databases.

GPM Science Objectives

GPM is designed to advance scientific understanding of the Earth's water and energy cycle but also provides near real-time data for a wide array of societal applications. As a science mission with integrated application goals, the GPM mission has five scientific objectives:

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